Kansas (USA) is 1,739 times larger than San Francisco.
Kansas KAN-zəs is a U.S. state located in the Midwestern United States. It is named after the Kansa Native American tribe which inhabited the area. The tribe's name is often said to mean "people of the wind" or "people of the south wind," although this was probably not the term's original meaning. Wikipedia
Area: 122 km2 calculated
San Francisco, officially the City and County of San Francisco, is the cultural center and a leading financial hub of the San Francisco Bay Area and Northern California. Wikipedia